#ifndef __DELAY_H__
#define __DELAY_H__

#include "gd32f4xx_libopt.h"
#include "gd32f4xx_exti.h"
#include "gd32f4xx.h"
void delay_us(uint32_t _us);
void delay_ms(uint32_t _ms);
#endif /* __DELAY_H__ */
